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Old Posted Feb 21, 2020, 10:45 PM
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Join Date: Feb 2004
Location: Hippyville, Winnipeg
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The ends and sides of the hollow core planks are grouted and tied to each other with rebar and to anchors on top of the steel beams.

Until that is done, the floor diaphragm has no real strength. Sort of like if put plywood on top of floor joists, but didn't screw it down.
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